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2020 26th International Workshop on Thermal Investigations of ICs and Systems (THERMINIC) by Rozsas, Gabor (author);Bognar, Gyorgy (author);Takacs, Gabor (author);Szabo, Peter G. (author);Plesz, Balazs (author) is a nonfiction available to read on EtoBox.

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Concentrator photovoltaics (CPV) is one of the promising solutions in the fields of green energy production. Their main advantage is that the concentration of incident light significantly increases their efficiency compared to traditional photovoltaics. Unfortunately, light concentration also increases the temperature, which has a negative effect on the efficiency so, the cooling of CPVs is an essential issue to fully utilize their potentials. The idea presented by our team is to use microchannels integrated into the backside metallization of the PV-devices. The proposed process is based on an evaporated titanium and copper seed layer followed by selective copper electroplating around a photoresist microchannel pattern. After removing the photoresist microchannels remain in the grown copper that also serves as the back contact of the solar cell. In this paper we present several improvements of the process to avoid the formation of photoresist residues and clogging that were identified as the main reason of unsatisfactory cooling performance in previous implementations. Cooling performance of the manufactured device was confirmed by hydrodynamic and thermal characterization procedur

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Author

Rozsas, Gabor (author);Bognar, Gyorgy (author);Takacs, Gabor (author);Szabo, Peter G. (author);Plesz, Balazs (author)

Publisher

IEEE

Published

2020

Language

EN

Category

nonfiction